Pacific imperial pigeon

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Pacific imperial pigeon
Ducula pacifica 13238830.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Columbiformes
Family: Columbidae
Genus: Ducula
Species:
D. pacifica
Binomial name
Ducula pacifica
(Gmelin, JF, 1789)

The Pacific imperial pigeon, Pacific pigeon, Pacific fruit pigeon or lupe (Ducula pacifica) is a widespread pigeon species in the family Columbidae. It is found in American Samoa, the Cook Islands, the smaller islands of eastern Fiji, Kiribati, Niue, the smaller satellite islands of Papua New Guinea, Samoa, Solomon Islands, Tokelau, Tonga, Tuvalu, Vanuatu, and Wallis and Futuna Islands.

Contents

Taxonomy

The Pacific imperial pigeon was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae . He placed it with all the other doves and pigeons in the genus Columba and coined the binomial name Columba pacifica. [2] Gmelin based his description on the "Ferruginous-vented pigeon" from the "Friendly Isles in the South Seas" (now the Tonga Islands in the South Pacific) that had been described in 1783 by English ornithologist John Latham. [3] The Pacific imperial pigeon is now placed with 40 other Imperial pigeons in the genus Ducula that was introduced in 1836 by the English naturalist Brian Houghton Hodgson. [4] [5] The genus name Ducula is from the Latin dux genitive ducis meaning "leader". [6]

Two subspecies are recognised: [5]

Description

The Pacific imperial pigeon is 36–41 cm (14–16 in) in overall length and weighs 370–420 g (13–15 oz). The back, tail and wings are blackish-green, the head and neck are light grey. The breast is grey with a pinkish tinge. The undertail coverts are brown. The bill is black with a knob on the upper mantle. The iris is red. The female is slightly smaller. The juvenile lacks the knob on the bill, is duller and lacks the pink on the breast. [7]

Distribution and habitat

Its natural habitats are tropical moist lowland forests on smaller islands and tropical moist montane forest on larger islands. It will travel across parts of its range between islands to forage. Individuals may gather to form large flocks in fruiting trees and travel some distances to forage.

Behaviour

Food and feeding

The species is frugiverous, taking a number of different species of fruit, and occasionally leaves and flowers. [7]

Breeding

Pairs nest in high trees, constructing a concealed, unlined untidy nest of twigs. Usually a single egg is laid, with incubation being undertaken by both sexes. [7]

Conservation status

The species has suffered from habitat loss and hunting pressure, and has declined locally in some areas, but it remains common over much of its range, and is listed as least concern by the IUCN. It is most vulnerable in smaller islands. It was hunted in prehistoric times in Tonga and Samoa with elaborate traps on stone platforms, and these hunts were of considerable cultural significance.

In Niue this breed is called a Lupe. It is a delicacy for the locals. It is now protected but people still hunt them. It is unknown where they breed or come from as no evidence of their nests have ever been found in Niue.

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References

  1. BirdLife International (2016). "Ducula pacifica". IUCN Red List of Threatened Species . 2016: e.T22691658A93319934. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22691658A93319934.en . Retrieved 11 November 2021.
  2. Gmelin, Johann Friedrich (1789). Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1, Part 2 (13th ed.). Lipsiae [Leipzig]: Georg. Emanuel. Beer. p. 777.
  3. Latham, John (1783). A General Synopsis of Birds. Vol. 2, Part 1. London: Printed for Leigh and Sotheby. p. 633.
  4. Hodgson, Brian Houghton (1836). "Notices of the ornithology of Nepal". Asiatic Researches, or, Transactions of the Society Instituted in Bengal. 19: 143–192 [160].
  5. 1 2 Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (January 2022). "Pigeons". IOC World Bird List Version 12.1. International Ornithologists' Union. Retrieved 23 August 2022.
  6. Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 141. ISBN   978-1-4081-2501-4.
  7. 1 2 3 Baptista, L.F.; Trail, P.W.; Horblit, H.M. (1997). "Pacific Imperial-pigeon" . In del Hoyo, J.; Elliott, A.; Sargatal, J. (eds.). Handbook of the Birds of the World. Vol. 4: Sandgrouse to Cuckoos. Barcelona, Spain: Lynx Edicions. p. 230. ISBN   978-84-87334-22-1.